Can End Scoring for Safe High-Pressure Venting

The single mustache score is segmented into multiple scores: a first mustache score, a second mustache score, and a flex line score. This segmentation distributes the pressure relief function across multiple pathways, preventing any single point from failing under high pressure and reducing explosive force by controlling gas flow through multiple channels.

Different regions of the end panel are given different score characteristics. The first mustache score has specific curvature and depth properties, the second mustache score has different properties, and the flex line score connects them. Each local region is optimized for its specific function in the pressure relief system, creating zones of controlled weakness that manage high pressure effectively.

The score lines are pre-formed during manufacturing with specific depths, curvatures, and positions. These preliminary structural modifications create predetermined failure paths that will activate at low forces during opening. The flex line score and mustache scores are pre-weakened to specific extents, so when opening force is applied, the panel fails along these pre-planned paths rather than requiring high force to create new failure paths.

The score lines have specific geometric parameters (depth, curvature radius, spacing, orientation) that are optimized to create the desired mechanical behavior. By controlling these parameters, the end panel maintains high overall strength for pressure containment while having localized regions with reduced strength that facilitate easy opening. The parameters of the scores are carefully selected to balance containment strength with opening ease.

The rivet formation has a specific geometry with a prominent head for hinge function and a controlled interaction zone with the vent scores. The first and second mustache scores are positioned at specific distances and angles relative to the rivet, creating localized functional zones. The rivet provides concentrated structural support exactly where needed for hinge action, while the scores are positioned in regions where they can effectively relieve pressure without being blocked by the rivet structure.

The solution moves from a two-dimensional score pattern to a three-dimensional arrangement by incorporating the rivet formation's vertical prominence and positioning the scores at different spatial relationships to it. The scores extend in multiple directions and depths relative to the rivet, creating a立体 (three-dimensional) pressure relief network that operates independently of the rivet's hinge function, thus resolving the conflict between hinge effectiveness and venting effectiveness.